Chalk holder



FIG. 1 shows a rear perspective view of a chalk holder;

FIG. 2 shows a front perspective view of the chalk holder;

FIG. 3 shows a rear view of the chalk holder;

FIG. 4 shows a front view of the chalk holder;

FIG. 5 shows a left side view of the chalk holder;

FIG. 6 shows a right side view of the chalk holder;

FIG. 7 shows a top plan view of the chalk holder; and,

FIG. 8 shows a bottom plan view of the chalk holder. 

CLAIM The ornamental design for a chalk holder, as shown and described. 